indexo.dev

jepsen.io

.io crawl

First seen 2026-04-13 · Last seen 2026-05-06 · ok HTTP/1.1 200 459 ms crawled 2026-05-06

US · 66.241.124.123 · AS40509 Fly.io, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Distributed Systems Safety Research
Language
en

Technology

Server
Fly
Analytics
  • Google Tag Manager
Social widgets
  • YouTube Embed

Third-party hosts loaded (2)

  • www.youtube.com×2
  • www.googletagmanager.com×1

Social

Contact

Email

DNS records live

NS
  • curitiba.ns.porkbun.com
  • fortaleza.ns.porkbun.com
  • maceio.ns.porkbun.com
  • salvador.ns.porkbun.com
MX
  • 1 aspmx.l.google.com
  • 10 alt3.aspmx.l.google.com
  • 10 alt4.aspmx.l.google.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com
TXT
  • clojars aphyr@aphyr.com
  • google-site-verification=o_UbigaoQRj3iLed4xYtMpHkD8wi11tD2SI8cIq15oE

Email authentication partial

SPF
v=spf1 include:_spf.google.com ~all
softfail (~all)
DMARC
not published
DKIM
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2xQWJ4LLb2icZjWM5i4uGogEfclbVlPsHgtu6oVMHOBeAyVihYFStqyvjbbqRT5lypvm+SKKJOfylI…
selectors probed

Certificate (current)

E7
from 2026-04-10 to 2026-07-09
Expires in 50 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://jepsen.io/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (7)

Linked from (1)